Tuck-marker.



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, tion. Fig. 2 shows the needle and needle-bar of features extremely simple in their nature,

downstrolre of the needle-bar.

actuation from the needle-bar.

AMHERST Cr. LAMB, OF'TORRINGTON, CONNECTICUT, EXCELSIOR NEEDLE COMPANY, OF TORRINGTON, A CORPORATION OF CONNECTICUT.

AssicNoR ro f CoNNnCriCUr` TuoK-MARKER.

No. 830,509. Specification of Letters Patent, Patentedv Sept- 11, 1906.

Application iiled September 2, 1905. Serial No, 276,794.

tuator-arm 12 is shown pivotallyfsupported, as by an eye 13 and a pivot 14, in some convenient manner, preferably at some distance to one side of the-arm 9, and the main portion or arm proper, 15, of said actuator-arm 12 extends across the intervening space between the pivot 14, carried by the frame 5, andthe arm 9 and is formed to so engage the arm 9 as to actuate and control its movements. In -the preferred form of my improvement said actuator-arm 12 is for the purpose here indicated made from a sheet- Vmetal blank and is carried underneath the arm 9 and bent over the same to form an outwardly-extending yielding or spring arm 16, which is located for properly engaging with a projecting portion 17, carried on the needle- To all whom, it 11i/ty concern:

Be it known that I, AMHEnsT G. LAMB, a citizen of the United States, residing in Torrington, in the countyl of Litchfield and State of Connecticut, have invented certain new and useful Improvements in Tuck-Markers, of which the following is a specification.

This invention relates to improvements in that part of creasing devices for tuck-marliers by which the creaser is operated from the needle-bar of a sewing-machine.

The improvement relates to a direct and effective manner in which a yielding connection is provided for operating the creaserblade from the needle-b ar by an arrangement but organized in a new and peculiar manner.-

Figure 1 is a perspective view of a form of embodiment of the present improvement. Fig. 2 is a view, partly cross-sectional, of portions of a sewing-machine and of the device illustrated in Fig. 1 and partly diagrammatical of some portions of the sewing-machine;` Fig. 3 is a cross-sectional view of some of the parts shown in Fig. 2, but in a dierent posithe actuator-arm. Thebend 25 engages and in the present illustration ,practically embraces the marker-arm. The marker comprises a pair of creasing members 8 and 18, one carried by the marker-arm and one by the slide 1 1, shiftable upon the framing member, as before referred to, f'or the purpose of adjusting the line of creasing or marking relative to the line of sewing. The o eration of these parts will be more fully un a comparison of Figs. 2, 3, and 4, showing the successive positions of said parts. In Fig. 2 the creaser members are separated, andthe raised, and Fig. 3 shows these parts lowered almostto the end of their stroke. Fig. 4 shows in full lines the actuator-arm at the end of its stroke, which is slightly in advance of the position of Fig. 3, and in dotted lines the position assumed on the completion of a in the present instance by the instrumentality of a spring 19, carried by the frame and trated is designed for attachment toV the engaging the marker-arm 9, while the arm 12 presser-foot bar of a sewing-machine and for is shown with its spring-arm 16 widely eX- When adtended from the arm 15 thereof, this being justed and attached, the frame 5 will be fasi owing to the elastic construction of said tened in some convenient manner to the member. In Fig. 3 the needle-bar is shown resser-foot bar 6 of the sewing-machine and carried down, so that the operating elewill be in a substantially fixed position relai ment 17 has forced down the arm 16, theretive to the path of movement of the needle 7. by rocking the entire member 12 and also The tuck-marker or creaser herein illusi The creaser proper, or rather the working forcibly carrying down the marker-arm 9 for closing the creaser-blade 8 on the fabric 50, lying over the creaser member 18 and resting generally on the sewing-machine throatried on the end of a rod or marker-arm 9,

which is supported at 10 in a slide 11, shiftable upon-the frame 5. The frame of the plate 20, as will be understood from this tuck-marking attachment may be made of -iigure in comparison with the preceding sheet metal of suitable thickness and rigidity. view. At the time indicated in Fig. 3, how- The present improvement. relates more ever, being the position indicated by 2 in the especially to the actuator-arm 12, by which diagram Fig. 2, the position indicated by 1 the said marker-arm 9 is operated from the in such diagram shows the position at which needle-bar of the'sewing-machine. The aci the operating element 17 iirst 4engages the face of the same, is indicated by 8. It is carmarker-arm is shown considerably elevated,

bar and forming the operating element for erstood by e gramV of Fig. 1) operates to spring the arm avoided. At th comparison of said of elastic metal bent upon itself and having an eye at one end the bend embracing the oscillatory arm, a stud carried by the frame and affording a bearing for said eye, the free end of said actuator-arm occupying a position midward of the eye and bend and for t e engagement of the sewing-machine needlear.` e

2. In a tuck-marker for sewing-machines, the combination with a frame, of a pair of arm 16, the needle-bar is still descending, and to provide for this and at the same time take advantage of such necessary further movement of the needle-bar and also to properly cushion the creaser-blade while obtaining a highly-efficient operation thereof the sald operating-arm 12 is constructed to have the nature of a liexible spring, and bemg thus constructed the further movement o said operating element 17 from the position shown in Fig. 3 downwardly to the posi- 4 (see position 3 in dian tion shown in F1 oted at one end to the frame and at the other end embracing the marker-arm, and said actuator-arm having a spring-arm connected with it near the marker-arm-engaging portion and located between the pivotal point of the actuator-arm and the marker-arm for the engagement of the sewing-machine needie-bar.

3. In av tuck-marker for sewing-machines, the combination with a frame and means for the same iixedly path of reciprocation of the sewing-machine needle, a marker embodying a pair of creasing members, means. carrying one of the creasing members and shiftable upon said ame, an arm pivotally carried by said shiftable means and carrying the other of said creasing members, elastic means for separating said members, an actuator-arm comprising a member bent upon itself and having an eye at one end, the bend embrac- 16 downwardly into position indicated by the dotted lines at 161, and 171 shows the position of the operating element, and by this means through the flexibility of said member 12 and its arm 16 a yielding pressure 1s gradually apphed to the oreaser-blade and a sudden or positive action thereof is dwell obtained through theoperation of the operating element 17 and the spring-arm 16, as will be more fully understood by a arts in their respective positlons, as shown 1n Figs. 2, 3, and 4.

It will be observed that by reason of the position of the needle-bar being midward, and in the present illustration about midway between the p ivot 14 and the markere pressure is rapidly but gradually, neverlng the oscillatory arm, a stud carried by the theless, applied to the fabric, and the maname and affording a bearing for said eye, ner 1n which this is accomplished is such that the free end of said actuator-arm being elaslt'does not interfere with the proper downward movement of the creaser-blade 8, notwithstandingthe operation of the same is made gentle and its action is by a gradual increasing force or pressure, while at the same time applying the resistance to the needle-bar in a correspondingly gradual manner, thereby minimizing the shock which theV operation of these devices would otherwise normally receive through the operation of the mechanism of the sewing-machine.

Having described my invention, I claiml. In a tuck-marker for sewing-machines, the combination with a frame, of a shiftable tlcally yieldable and occupying a position midward of the eye and bend and for the engagement of the sewing-machine needle-bar. 4. In a tuck-marker for sewing-machines, the combination with a frame, of marking members, an arm oscillatorily mounted on the frame and carrying one of said marking members, and an actuator comprised of elastic metal having a bend and forming a pair of arms, the bend embracing the oscillatory arm, and one of said pair of arms being carried by the frame and the other constituting a spring-arm for the engagement of the operating element of the sewing-machine.

AMHERST G. LAMB.

Witnesses:

D. HILDRETH, C. E. MoREHoUsE.

IOO 

